Title:
HIGH-PRESSURE DISCHARGE LAMP
Document Type and Number:
WIPO Patent Application WO2003044826
Kind Code:
A3
Abstract:
The invention relates to a high-pressure discharge lamp (1) provided with a discharge vessel (2) made of quartz glass which encloses a discharge space (3) having an ionizable filling and an electrode (4). The discharge vessel (2) is provided with a seal (5) which preferably encloses an Mo foil and forms a feedthrough for an electric conductor (6) to the electrode (4). At the location of the foil, the seal (5) has a gastight sealed cavity (10). According to the invention the cavity (10) is free of a capacitive coupling. This improves reliable ignition.
Inventors:
HENDRIX JOHAN L V (NL)
VAN DEN NIEUWENHUIZEN HUBERTUS (NL)
ANTONIS PETRUS H (NL)
VAN DEN NIEUWENHUIZEN HUBERTUS (NL)
ANTONIS PETRUS H (NL)
Application Number:
PCT/IB2002/004545
Publication Date:
May 21, 2004
Filing Date:
October 29, 2002
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
HENDRIX JOHAN L V (NL)
VAN DEN NIEUWENHUIZEN HUBERTUS (NL)
ANTONIS PETRUS H (NL)
HENDRIX JOHAN L V (NL)
VAN DEN NIEUWENHUIZEN HUBERTUS (NL)
ANTONIS PETRUS H (NL)
International Classes:
H01J61/20; H01J61/36; H01J61/54; H01J61/82; H01J61/86; (IPC1-7): H01J61/36; H01J61/20; H01J61/54; H01J61/82; H01J61/86
Domestic Patent References:
| WO2000077826A1 | 2000-12-21 |
Foreign References:
| US5905338A | 1999-05-18 | |||
| EP0596735A1 | 1994-05-11 | |||
| US5397259A | 1995-03-14 |
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